WC pans and WC suites with integral trap

This standard specifies constructional and performance requirements together with the test methods for close-coupled suites one-piece WCs and independent WC pans with integral trap used for personal hygiene manufactured from glazed ceramics or stainless steel.
This standard does not apply to squatting toilets, WC pans without integral trap, flushing cisterns as separate appliances.
In case of independent WC pans, the associated flushing cisterns and pressure valves are covered by other standards and the reference to flushing cisterns is related only to the definition and requirements of flushing volume.
In case of close-coupled suites and one-piece WCs, this standard also specifies design, performance requirements and the test methods for designated flushing cisterns with flushing mechanism, inlet valve and overflow. For these products, this standard covers flushing cisterns designated to be connected to drinking water installations inside buildings.
Before installation of WCs, EN 12056-2 and national regulations shall be taken into account.

WC-Becken und WC-Anlagen mit angeformtem Geruchverschluss

Diese Norm legt die konstruktiven und funktionellen Anforderungen und Prüfverfahren für WC-Kombinationen, Einstück-WCs und WC-Becken mit freiem Zulauf mit angeformtem Geruchverschluss zur persönlichen Hygiene, hergestellt aus Sanitärkeramik oder nichtrostendem Stahl, fest.
Diese Norm gilt nicht für Hock-WCs, WC-Becken ohne angeformten Geruchverschluss sowie Spülkästen als Einzelgegenstände.
Für WC-Becken mit freiem Zulauf werden die zugehörigen Spülkästen und Druckspüler durch andere Normen abgedeckt. Der Verweis auf Spülkästen in dieser Norm gilt nur für die Begriffe und die Anforderungen an das Spülvolumen.
Für WC-Kombinationen und Einstück-WCs legt diese Norm zudem Konstruktions- und Leistungs-anforderungen und Prüfverfahren für die zugeordneten Spülkästen mit Spülmechanismus, Füllventil und Überlauf fest. Dabei gilt diese Norm nur für Spülkästen, die für den Anschluss an die Trinkwasser-Installation in Gebäuden ausgelegt sind.
Vor dem Einbau von WCs müssen EN 12056-2 und nationale Bestimmungen berücksichtigt werden.

Cuvettes de WC et cuvettes à réservoir attenant à siphon intégré

La présente norme spécifie les prescriptions relatives à la construction et aux performances, ainsi que les méthodes d’essai des cuvettes de WC indépendantes, monobloc et à réservoir attenant, à siphon intégré, en céramique émaillée ou en acier inoxydable, utilisées pour l’hygiène personnelle.
La présente norme ne s’applique pas aux sièges à la turque, aux cuvettes de WC sans siphon intégré, ni aux réservoirs de chasse seuls.
Pour les cuvettes indépendantes, les réservoirs et robinets de chasse associés sont traités dans d’autres normes. La référence aux réservoirs dans la présente norme ne concerne que la définition et des prescriptions relatives au volume de chasse.
Pour les cuvettes à réservoir attenant et les cuvettes monobloc, la présente norme spécifie également les prescriptions relatives à la conception et aux performances, ainsi que les méthodes d’essai applicables aux réservoirs de chasse associés équipés d’un mécanisme de chasse, d’un robinet d’alimentation et d’un trop-plein. Pour ces produits, la présente norme traite des réservoirs de chasse conçus pour être raccordés aux réseaux d’eau potable à l’intérieur des bâtiments.
Avant l’installation de WC, l’EN 12056-2 et les prescriptions nationales doivent être prises en compte.

WC školjke in WC naprave z integriranim sifonom

Ta evropski standard določa konstrukcijske zahteve in zahteve v zvezi z delovanjem ter preskusne metode za prigrajene naprave, enodelne in neodvisne WC školjke z integriranim sifonom za osebno higieno, proizvedene iz glazirane keramike ali nerjavnega jekla. Ta evropski standard se ne uporablja za čepeča stranišča, WC školjke brez integriranega sifona ali splakovalne kot ločene naprave. V primeru neodvisnih WC školjk so povezani splakovalniki in tlačni ventili zajeti v drugih standardih, pri čemer je sklicevanje na splakovalnike v tem standardu povezano samo z opredelitvijo in zahtevami prostornine za splakovalno vodo. Ta standard za prigrajene naprave in enodelne WC školjke določa tudi zasnovo, zahteve glede zmogljivosti in preskusne metode za določene splakovalnike z mehanizmi za splakovanje, dovodnimi ventili ter prelivi. V zvezi s temi izdelki so v tem standardu obravnavani splakovalniki, ki so namenjeni priključitvi na napeljave za pitno vodo v stavbah. Pred vgradnjo WC školjk ali naprav je treba upoštevati standard EN 12056-2 in nacionalne zahteve.

General Information

Status
Withdrawn
Public Enquiry End Date
19-May-2010
Publication Date
27-Mar-2012
Withdrawal Date
09-Jul-2015
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
10-Jul-2015
Due Date
02-Aug-2015
Completion Date
10-Jul-2015

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.WC školjke in WC naprave z integriranim sifonomWC-Becken und WC-Anlagen mit angeformtem GeruchverschlussCuvettes de WC et cuvettes à réservoir attenant à siphon intégréWC pans and WC suites with integral trap91.140.70Sanitarne napraveSanitary installationsICS:Ta slovenski standard je istoveten z:EN 997:2012SIST EN 997:2012en,fr,de01-maj-2012SIST EN 997:2012SLOVENSKI

STANDARDSIST EN 997:2004/A1:2007SIST EN 997:20041DGRPHãþD
SIST EN 997:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 997
February 2012 ICS 91.140.70 Supersedes EN 997:2003English Version
WC pans and WC suites with integral trap
Cuvettes de WC et cuvettes à réservoir attenant à siphon intégré

WC-Becken und WC-Anlagen mit angeformtem Geruchverschluss This European Standard was approved by CEN on 9 December 2011.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 997:2012: ESIST EN 997:2012

EN 997:2012 (E) 2 Contents Page Foreword ..............................................................................................................................................................51 Scope ......................................................................................................................................................62 Normative references ............................................................................................................................63 Terms and definitions ...........................................................................................................................74 Classification ....................................................................................................................................... 105 Functional requirements and test methods for class 1 products ................................................. 105.1 Depth of water seal ............................................................................................................................. 105.2 Flushing requirements ....................................................................................................................... 105.2.1 General ................................................................................................................................................. 105.2.2 Wash of bowl ....................................................................................................................................... 115.2.3 Flushing of toilet paper ...................................................................................................................... 115.2.4 Flushing of fifty small plastic balls ................................................................................................... 115.2.5 Oversplashing ..................................................................................................................................... 115.2.6 After-flush volume .............................................................................................................................. 115.3 Water absorption ................................................................................................................................ 115.4 Static load ............................................................................................................................................ 115.5 Additional requirements of flushing cisterns for close-coupled suites and one-piece WCs ..... 125.5.1 General ................................................................................................................................................. 125.5.2 Inlet valve of the flushing cistern ...................................................................................................... 125.5.3 Supply piping ...................................................................................................................................... 125.5.4 Flush volume(s) of the flushing cistern ........................................................................................... 125.5.5 Leaktightness between flushing cistern and bowl .......................................................................... 125.5.6 Outlet valve leaktightness ................................................................................................................. 125.5.7 Outlet valve reliability ......................................................................................................................... 125.5.8 Overflow ............................................................................................................................................... 125.5.9 Safety margin – dimension “c” .......................................................................................................... 135.5.10 Safety margin – dimension “a” .......................................................................................................... 145.6 Durability ............................................................................................................................................. 145.7 Test methods ....................................................................................................................................... 145.7.1 Depth of water seal ............................................................................................................................. 145.7.2 Flushing tests ...................................................................................................................................... 145.7.3 Determination of water absorption ................................................................................................... 175.7.4 Load test .............................................................................................................................................. 195.7.5 Tests for flushing cisterns of close-coupled suites and one-piece WCs ..................................... 195.8 Types of independent WC pans, close-coupled suites and one-piece WCs ................................ 225.8.1 Nominal flush volume ........................................................................................................................ 225.8.2 Flushing devices ................................................................................................................................. 225.8.3 Verification of types ........................................................................................................................... 236 Functional requirements and test methods for class 2 products ................................................. 236.1 Inlet valve ............................................................................................................................................. 236.2 Backflow prevention ........................................................................................................................... 236.3 Marking of flushing cistern ................................................................................................................ 236.4 Warning pipe and overflow provision............................................................................................... 236.5 Flush volume ....................................................................................................................................... 246.5.1 Full flush .............................................................................................................................................. 246.5.2 Reduced flush ..................................................................................................................................... 246.6 Flush rate ............................................................................................................................................. 246.7 Physical endurance and leakage of flushing device ....................................................................... 246.8 Chemical endurance of flushing device ........................................................................................... 24SIST EN 997:2012

EN 997:2012 (E) 3 6.9 Solids discharge and after-flush volume for maximum flush ........................................................ 246.10 Paper discharge for reduced-flush volume ...................................................................................... 246.11 Liquid contaminant dye retention ...................................................................................................... 256.12 Wash of bowl ....................................................................................................................................... 256.13 Depth of water seal .............................................................................................................................. 256.14 Static load of class 2 products .......................................................................................................... 256.15 Water absorption ................................................................................................................................. 256.16 Durability of class 2 products ............................................................................................................ 256.17 Test methods ....................................................................................................................................... 256.17.1 Inlet valve tests .................................................................................................................................... 256.17.2 Warning pipe and overflow provisions ............................................................................................. 266.17.3 Flush volume and water trap seal tests ............................................................................................ 266.17.4 Flush rate test ...................................................................................................................................... 276.17.5 Physical endurance and leakage test of flushing device ................................................................ 286.17.6 Chemical endurance test of flushing device .................................................................................... 296.17.7 Solids discharge and after-flush volume for maximum flush volume test ................................... 296.17.8 Paper discharge for reduced-flush volume test ............................................................................... 306.17.9 Liquid contaminant dye retention test .............................................................................................. 316.17.10 Wash of bowl ....................................................................................................................................... 326.17.11 Summary of requirements for compatibility testing of class 2 products ...................................... 327 Marking ................................................................................................................................................. 338 Evaluation of conformity .................................................................................................................... 358.1 General ................................................................................................................................................. 358.2 Type testing ......................................................................................................................................... 358.2.1 Initial type testing ................................................................................................................................ 358.2.2 Further type testing ............................................................................................................................. 358.2.3 Sample, testing and compliance criteria........................................................................................... 358.3 Factory Production Control (FPC) ..................................................................................................... 378.3.1 General ................................................................................................................................................. 378.3.2 Testing equipment ............................................................................................................................... 378.3.3 Raw materials and components ........................................................................................................ 388.3.4 Product testing and assessment ....................................................................................................... 388.3.5 Non-conforming products .................................................................................................................. 38Annex A (normative)

Valve-type test flushing cistern .................................................................................. 39A.1 Valve-type test flushing cistern (Figures A.1 to A.3) ....................................................................... 39A.2 Calibration of the valve-type test flushing cistern ........................................................................... 41A.3 Procedure to test the flush rate of the test flushing cistern ........................................................... 41A.4 Procedure to test the flushing requirements of the WC .................................................................. 42A.5 Procedure to measure the impact force of the test flushing cistern ............................................. 42A.5.1 General ................................................................................................................................................. 42A.5.2 Test device ........................................................................................................................................... 42A.5.3 Procedure for calibrating the load cell unit and the measurement amplifier ................................ 44A.5.4 Measurement procedure ..................................................................................................................... 44A.5.5 Calculation procedure for fixed time frame 0,35 s to 0,5 s ............................................................. 45A.5.6 Calculation procedure for maximum impact force .......................................................................... 45Annex B (normative)

Test rig for test pressure flush valve ......................................................................... 46B.1 Test rig (Figure B.1) ............................................................................................................................. 46B.2 Procedure to measure the impact force............................................................................................ 47Annex C (normative)

Test rig for after-flush volume test ............................................................................. 49C.1 Test rig for after-flush volume test for independent WC pans (Figures C.1 and C.2) .................. 49C.2 Test rig for after-flush volume test for one-piece WC pans, close-coupled suites and WC suites (Figure C.3) ............................................................................................................................... 50Annex D (normative)

Basket method .............................................................................................................. 51Annex E (normative)

Preparation of test specimens .................................................................................... 52Annex F (informative)

Examples of flush pipes and outlet valves for test flushing cisterns ................... 54SIST EN 997:2012

EN 997:2012 (E) 4 Annex ZA (informative)

Clauses of this European Standard addressing the provisions of the EU of EU Construction Products Directive ............................................................................................ 58ZA.1 Scope and relevant characteristics .................................................................................................. 58ZA.2 Procedure for attestation of conformity of independent WC pans, WC suites and one-piece WC pans .................................................................................................................................... 60ZA.2.1 System of attestation of conformity ................................................................................................. 60ZA.2.2 Declaration of conformity .................................................................................................................. 60ZA.3 CE marking .......................................................................................................................................... 61Bibliography ..................................................................................................................................................... 62 SIST EN 997:2012

EN 997:2012 (E) 5 Foreword This document (EN 997:2012) has been prepared by Technical Committee CEN/TC 163 “Sanitary appliances”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdrawn at the latest by November 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 997:2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This standard is one of a series of standards for sanitary appliances. Supporting standards are those for flushing devices and connecting dimensions. a) by reason of the actual market development, testing the flushing requirements has been specified. In this connection, requirements for test flushing cistern and its calibration have been adjusted to these conditions (introduction of the new parameter impact force); b) requirements and test methods for close-coupled suites and one-piece WCs have been extended and adjusted to those for flushing cisterns in accordance with EN 14055. NOTE Noise level has not been considered in the present amendment. Noise level will be considered as soon as a European test method is available. 1) According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

1) Presently, a test method is under elaboration by CEN/TC 126 “Acoustic properties of building products and of buildings” SIST EN 997:2012

EN 997:2012 (E) 6 1 Scope This European Standard specifies constructional and performance requirements together with test methods for close-coupled suites, one-piece and independent WC pans with integral trap used for personal hygiene manufactured from glazed ceramics or stainless steel. This European Standard does not apply to squatting toilets, WC pans without integral trap or flushing cisterns as separate appliances. In the case of independent WC pans, the associated flushing cisterns and pressure valves are covered by other standards and the reference to cisterns in this standard is related only to the definition and requirements of flushing volume. In the case of close-coupled suites and one-piece WCs, this standard also specifies design, performance requirements and the test methods for designated flushing cisterns with flushing mechanisms, inlet valves and overflows. For these products, this standard covers flushing cisterns designed to be connected to drinking water installations inside buildings.

Before installation of WCs, EN 12056-2 and national requirements need to be taken into consideration. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1717, Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow EN 12056-2, Gravity drainage systems inside buildings — Part 2: Sanitary pipework, layout and calculation EN 13618, Flexible hose assemblies in drinking water installations — Functional requirements and test methods EN 14124, Inlet valves for flushing cisterns with internal overflow AS 1172-1, Water closets of 6/3 l capacity — pans BS 1212-2:1990, Float operated valves. Specification for diaphragm type float operated valves (copper alloy body) (excluding floats) BS 1212-3:1990, Float operated valves. Specification for diaphragm type float operated valves (plastics bodied) for cold water services only (excluding floats) BS 1212-4:1991, Float operated valves. Specification for compact type float operated valves for WC flushing cisterns (including floats) SIST EN 997:2012

EN 997:2012 (E) 7 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. NOTE Drawings are diagrammatic only. 3.1 glazed ceramic ceramic material for sanitary appliances with all visible surfaces glazed when installed

3.2 WC pan bowl-shaped appliance for reception and flushing away of human solid and liquid excrement

3.3 pedestal WC pan floor-mounted WC pan that has an integral foot
3.4 wall-hung WC pan WC pan cantilevered clear of the floor
3.5 back-to-wall WC pan pedestal WC pan whose back is in contact with the wall

3.6 wash-out WC pan WC pan in which excrement falls first into a shallow water filled bowl, before being removed by the flushing water

3.7 wash-down WC pan WC pan in which excrement falls directly into the trap before being removed by the flushing water

3.8 siphonic WC pan WC pan in which excrement is removed by siphonage induced by the flushing water

3.9 close-coupled suite combination of a WC pan and flushing cistern directly coupled into a functional unit

3.10 one-piece WC pan WC pan manufactured with an integral flushing cistern

3.11 independent WC pan WC pan suitable for the connection with a flushing cistern or a pressure flush valve

SIST EN 997:2012

EN 997:2012 (E) 8 3.12 WC suite WC pan combined with either a flushing cistern with integral warning pipe connection – or a device deemed to be a no less effective device – and inlet/outlet devices, or a pressure flush valve, with WC and flushing device installed as a functioning unit

3.13 children WC pan WC pan with a front edge between 300 mm and 380 mm high
3.14 baby WC pan WC pan with a front edge below 260 mm high

3.15 flushing device device fitted to a cistern to provide controlled measured volume(s) of water to a WC pan or suite for flushing Note 1 to entry: A flushing device can be a siphon, drop valve, flap valve or pressurised cistern etc. For the purposes of this specification, the flushing device includes the activator (e.g. handle, button, linkages etc.) and all seals, pistons, or other integral components.

3.16 valve-type flushing cistern cistern with integral valve outlet device for the storage and discharge of a defined volume(s) of flushing water for the removal of excrement from a WC pan

3.17 pressure flush valve valve directly connected to the water supply which delivers a pre-determined volume of flushing water for the removal of excrement from a WC pan

3.18 water trap water seal that prevents backflow of foul odour from a drain

3.19 inlet valve valve that controls and shuts off the flow of water into a flushing cistern, usually by an arm connected to a float

3.20 outlet valve mechanism for opening and closing the outlet orifice of the flushing cistern

3.21 flush pipe connecting pipe between a flushing cistern’s outlet and a WC’s inlet

3.22 overflow device enabling release of excess water from a flushing cistern when water reaches a pre-determined level

SIST EN 997:2012
EN 997:2012 (E) 9 3.23 overflow level

water level corresponding to the upper edge of the overflow or to the lower edge of the overflow notch

3.24 flush volume volume of water discharged from the flushing device during a flush cycle

3.25 after-flush volume volume of flush water remaining after the last test specimen has left the outlet of the bowl

3.26 warning level level of spill over of a vertically mounted warning pipe connection or the invert of a horizontally mounted warning pipe connection, or the level at which an equally effective (warning) device would operate

3.27 meniscus level level resulting from surface tension of water during overflowing

3.28 nominal water level water level when a cistern is filled to the nominal flush volume, e.g. 4 l, 5 l, 6 l, 7 l or 9 l

3.29 nominal flush volume volume of water indicated, when a flushing cistern is filled to the nominal water level

3.30 maximum water level highest water level reached after flow stabilisation, in the event of continuous supply, as a result of malfunction of the inlet valve

3.31 critical water level highest water level in any part of the appliance, 2 s after the supply is cut-off

3.32 residual water level water level, after a full flush is completed

3.33 adjustable residual water level residual water level in a cistern, after (uninterrupted) flushing, which can be altered by adjusting the outlet mechanism

3.34 short-term leak test leak test consisting of a 15 min wait after flushing then positioning paper designed to change colour when wet, under the flushing device for 10 min Note 1 to entry: A leak is defined as being visible discharge of water amounting to more than three separate drops.

SIST EN 997:2012

EN 997:2012 (E) 10 3.35 long-term leak test leak test consisting of a 2 h wait after flushing then positioning paper designed to change colour when wet, under the outlet for 15 min Note 1 to entry: A leak is defined as being visible discharge of water amounting to more than three separate drops.

3.36 safety margin – safety margin c distance between the nominal water level determined by the manufacturer, and the overflow level

3.37 impact force
force of the flushing water at the outlet of the flush pipe

3.38 test height distance between the seat of the flushing device and the horizontal axis of the flush pipe

3.39 flush rate volume of water flowing out of a flushing cistern as a function of time

4 Classification WC pans and suites are classified as described below: Class 1: WC pans and suites designed for use with and tested using a nominal full flush volume of either 4 l, 5 l, 6 l, 7 l or 9 l and in case of a reduced flush not less than those in accordance with Table 2 and Table 3. The requirements of class 1 are given in Clause 5.

Class 2: WC suites designed for use with a pressure flushing valve or a flushing cistern incorporating some other flushing device, and tested as described in Clause 6, using a maximum flushing volume of 6 l, or a dual-flush combining a maximum flush of 6 l and a reduced flush no greater than two-thirds of the maximum flush volume. The requirements of class 2 are given in Clause 6. 5 Functional requirements and test methods for class 1 products 5.1 Depth of water seal When tested in accordance with 5.7.1, the depth of the water seal shall be not less than 50 mm. 5.2 Flushing requirements

5.2.1 General Table 1 correlates the flushing requirements to the WC pan type and flushing volume. SIST EN 997:2012

EN 997:2012 (E) 11 Table 1 — Flushing requirements Type of WC pan in accordance with Table 2 and Table 3 Wash of bowl (5.2.2) Flushing of toilet paper (5.2.3) Flushing of 50 plastic balls (5.2.4) Oversplashing

(5.2.5) After-flush volume (5.2.6) 9 X X X X
7 X X X X
6 X X
X X 5 X X
X X 4 X X X X
The effi
...

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